基于硬件损伤的认知反向散射通信网络鲁棒安全资源分配算法  

Robust Secure Resource Allocation Algorithm for Cognitive Backscatter Communication with Hardware Impairment

作　　者：徐勇军[1,2] 姜思巧 张海波 王正强[1,2] 周继华 XU Yongjun;JIANG Siqiao;ZHANG Haibo;WANG Zhengqiang;ZHOU Jihua(School of Communication and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China;Chongqing Key Laboratory of Mobile Communications Technology,Chongqing 400065,China;Aerospace New Generation Communications Co,Ltd,Chongqing 401332,China)

机构地区：[1]重庆邮电大学通信与信息工程学院,重庆400065 [2]移动通信技术重庆市重点实验室,重庆400065 [3]航天新通科技有限公司,重庆401332

出　　处：《电子与信息学报》2024年第2期652-661,共10页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(62271094);重庆市教委科学技术研究项目(KJZD-K202200601);中国博士后科学基金(2022MD723725);四川省区域创新合作项目(2022YFQ0017)。

摘　　要：为了提高反向散射通信网络频谱效率、传输鲁棒性及信息安全性,该文提出一种基于硬件损伤的认知反向散射通信网络鲁棒安全资源分配算法。首先,考虑认知反向散射用户的最小安全速率、传输时间、能量收集和反射系数等约束,基于有界信道不确定性和频谱感知误差模型,建立一个多变量耦合的吞吐量最大化非凸资源分配问题。其次,利用最坏准则、连续凸近似和交替优化方法,将原问题转换为凸优化问题,并提出一种基于迭代的鲁棒资源分配算法。仿真结果表明,与现有算法对比,所提算法具有较好的鲁棒性。To improve spectral efficiency,transmission robustness,and information security of backscatter communication networks,a robust secure resource allocation algorithm is proposed for cognitive backscatter communication networks with hardware impairments.Firstly,considering the constraints of the minimum secure rate of each cognitive backscatter user,transmission time,energy harvesting,and reflection coefficients,a multivariable coupled resource allocation problem with throughput maximization is established under bounded channel uncertainties and spectrum sensing errors.Secondly,the original problem is transformed into a convex problem by using a worst-case approach,successive convex approximation,alternating optimization,and an iteration-based robust resource allocation algorithm is proposed to solve it.Simulation results show that the proposed algorithm has better robustness by comparing it with the existing algorithms.

关 键 词：认知反向散射通信 鲁棒资源分配 硬件损伤 安全通信 频谱感知误差 

分 类 号：TN929[电子电信—通信与信息系统]